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Showing: 1 to 10 of 17 matches for "jackleg longwall"  Page   1   2 TITLE Longwall Mining in Hardrock – Experience at San Francisco Manganese Ore Mine  SUMMARY ... JACKLEG LONGWALL STOPING In order to investigate possible economical ad- vantages of other methods of longwalling, the writer and a member of Compania Minera ... AUTHOR Lipensky, Milan PUBLISHED 1964 TITLE Virtual Reality In Mine Training  SUMMARY ... They have developed VR longwall shield supports, a plough guide, and a tailgate drive ... to see the virtual environment while learning to operate a jackleg drill. ... AUTHOR Mallett, L. ; Unger, R. PUBLISHED 2007 TITLE Mt. Gunnison No. 1 Mine B-Seam Underground Development  SUMMARY ... of 10 feet along its entire length to allow easy access of the longwall equipment. ... Bolt holes were drilled with jackleg drills and the wire pressed in place by ... AUTHOR Weiss, Terry ; Anderson, Thomas C. PUBLISHED 1993 TITLE Angle Bolts Control Rib Side At No. 4 Mine, Brookwood, Alabama  SUMMARY ... 1). Longwall mining extracts only the Blue Creek coal ... Straps were installed with a jackleg drill; Longer 2.4-m (8-ft) horizontal bolts with mechanical anchorage ... AUTHOR Gauna, M. ; Price, K. R. PUBLISHED 1985 TITLE Cable Slings - A Versatile 'Band-Aid' For Providing Safety In Underground Mining  SUMMARY ... a pneu- matic Jackleg drill powered by an electric air compressor. ... Could you comment on safety aspects of pillar mining and longwall mining. Answer ... AUTHOR Castle, Brian R. ; Scott, James J. PUBLISHED 1983 TITLE MINExpo INTERNATIONAL 2000 Largest Ever Held  SUMMARY ... And, to her left, is SME Associate Editor Bill Yernberg, Behind him are two mannequins with their jackleg drills. Page 4. ... In 1989, longwall mining began at TCC. ... AUTHOR O’Neil, Tim PUBLISHED 2000 TITLE Mine Costs and Control  SUMMARY Page 1. Section 31 Mine Costs and Control Elmer A. Jones W. T. Pettijohn Coordinating Editors 31.1-Capital cost of plants . . . . . 31-2 ... AUTHOR Wimpfen, Sheldon P. PUBLISHED 1973 TITLE A Case History Of Rockbursts At Elliot Lake  SUMMARY ... Using jackleg drills , the raises are widened in a series of slices Page 3. 212 STABILITY IN UNDERGROUND MINING I1 Greenstone Fig. ... AUTHOR Hedley, D. G. F. ; Roxburgh, J. W. ; Muppalaneni, S. N. PUBLISHED 1984 TITLE Annual Review – Underground Mining in 1955  SUMMARY ... a second mining consisting of pillar robbing on a modified longwall retreat basis resulted in ... In stopes, slushers and jackleg drills are a popular combina- tion ... AUTHOR Jones, Elmer A. PUBLISHED 1956 TITLE Belt Line Construction  SUMMARY Page 1. Belt Line Construction This chapter is concerned with the construc- tion of the dynamic component of belt haulage systems. ... AUTHOR Britton, Scott G. PUBLISHED 1983 Showing: 1 to 10 of 17 matches for "jackleg longwall"  Page   1   2 Search Again